Android has revved to version 2.1, and we’ve got a new edition of Hello, Android that’s up to date with all the latest changes. You can get the beta eBook now, or opt for the Beta on Paper to get a printed copy of this beta version.

Rails 3.1 comes with CoffeeScript right out of the box. And now, you can buy our new book on CoffeeScript today. It’s available now in beta, and is content-complete, but hasn’t been copyedited or indexed yet. Scheduled to be in print by June.

iOS Recipes: Tips and Tricks for Awesome iPhone and iPad Apps will help you take your iPhone and iPad apps to the next level. With these recipes in your arsenal, your next apps will be more polished and more maintainable than ever.

This February marks the tenth anniversary of the creation of the Agile Manifesto and Agile Alliance, so this month’s issue of the Pragmatic Programmer magazine, PragPub, features thoughts from the manifesto authors and other great bits.

First, we’re very proud to launch our 100th title, Maik Schmidt’s Arduino: A Quick-Start Guide. Next, we’ve got some new features to make reading our ebooks on mobile devices that much easier. And last but not least, we’ve got a few job openings here at the Pragmatic Bookshelf.

Programming Clojure is now in early Beta, Stripes …and Java web development is fun again is now in print and shipping, new episodes finish off the Expression Engine screencast series, and there’s a new podcast on Apple’s Core Data with Marcus Zarra.

Fall is Apple-picking time, and we’ve got a lot of great Apple Mac OS X and iPhone books, screencasts, and courses for you to pick from. Core Data: Apple’s API for Persisting Data under Mac OS X is now available in beta, and Core Animation for Mac OS X and the iPhone is now in print and shipping.